why is he fighting hagel over vietnam? >> well, it's interesting because he's ostensibly fighting with him over iraq, but it immediately becomes over vietnam. he seems to be mad that hagel took issue with him about iraq and compared it to vietnam being the big blunder, which, of course, mccain and hagel both served in. you know, when mccain talks about iraq, all he wants to talk about is from the surge on. it's as if everything before that didn't happen and didn't count, and we can still debate whether the surge worked or not, but the bigger issue is whether iraq was as bad as vietnam, and he doesn't want to have that argument. >> here is mccain sinking his teeth into hagel's ankle here, and he wouldn't let go on the question of the iraq surge. again, what david said. let's listen again, back again to the old war. >> were you correct or incorrect when you said that the surge would be the most dangerous foreign policy blunder in this country since vietnam? were you correct or incorrect? >> my -- >> yes or no. >> my referenc